This model is a set of matched books to be used with my Empty Bookcase model (http://shpws.me/L9R2) to fill some of the empty shelves. It is seperate for those modle painter that want to be able to reach all areas of the modle with paint before assembly. Because the tollerances are very tight I recommend checking the fit with the bookcase BEFORE painting to make sure that it will fit properly. If the books don't quite fit you can lightly sand the ends with very fine sandpaper to fine tune the fit.